A medical nurse is caring for a patient with type 1 diabetes. The patient's medication administration record includes the administration of regular insulin three times daily. Knowing that the patient's dinner tray will arrive at 1645, when should the nurse administer the patient's insulin to ensure the onset of the insulin coincides with the start of the meal?
1645
1615
1545
1600
The Correct Answer is B
A. Regular insulin typically begins to take effect 30 minutes after administration. Administering insulin at the time of the meal (1645) would not allow enough time for the insulin to reach its onset of action, potentially resulting in the blood glucose level being high during the meal.
B. Regular insulin has an onset of action of 30 minutes. By administering the insulin at 1615, it will start to take effect by 1645, when the meal arrives, and help ensure the insulin action aligns with the meal, preventing postprandial hyperglycemia.
C. Administering insulin at 1545 would be too early and could lead to the insulin peaking before the meal, which could result in hypoglycemia if the insulin peak occurs before the patient has food to absorb the glucose.
D. Administering insulin at 1600 would result in the insulin starting to work too soon, with the onset happening before the meal and possibly leading to hypoglycemia if the insulin peaks before the meal is consumed.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Metabolic Acidosis
Metabolic acidosis is characterized by a low pH and low bicarbonate (HCO3) level. In this case, the pH is low (indicating acidosis), but the bicarbonate level is within the normal range, which is inconsistent with metabolic acidosis.
B. Respiratory Acidosis
This is correct. Respiratory acidosis is characterized by an elevated partial pressure of carbon dioxide (PaCO2), leading to a decrease in pH. The ABG values in this case indicate elevated PaCO2 and a low pH, consistent with respiratory acidosis.
C. Metabolic Alkalosis
Metabolic alkalosis is characterized by a high pH and high bicarbonate (HCO3) level. In this case, the pH is low (indicating acidosis), which is inconsistent with metabolic alkalosis.
D. Respiratory Alkalosis
Respiratory alkalosis is characterized by a low partial pressure of carbon dioxide (PaCO2) and a high pH. In this case, the PaCO2 is elevated, which is inconsistent with respiratory alkalosis.

Correct Answer is ["B","C","E"]
Explanation
A. Buffalo hump:
Explanation: A buffalo hump is associated with excess cortisol, which is not a typical manifestation of Addison's disease. Instead, patients with Addison's disease may experience weight loss and muscle wasting.
B. Hyponatremia:
Explanation: Correct. Hyponatremia (low sodium levels) can occur in Addison's disease due to the loss of aldosterone, which plays a role in sodium and water balance.
C. Decreased glucose level:
Explanation: Correct. Addison's disease can lead to hypoglycemia (low blood glucose levels) because cortisol, which is important for maintaining blood glucose, is deficient.
D. Weight gain:
Explanation: Weight gain is not a typical manifestation of Addison's disease. Instead, weight loss and muscle wasting may occur.
E. Craving for salt:
Explanation: Correct. Addison's disease can lead to salt craving, as aldosterone deficiency results in increased sodium loss and potassium retention.

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